Wrong project, Apple forced to use the old GPU in the iPhone 14 Pro. Apple had foreseen a great generational leap for the graphics performance of the iPhone 14 Pro but would have been forced to back down due to technical difficulties encountered in the prototypes.
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This was reported by the site The Information stating that Apple engineers had very ambitious intentions with the iPhone 14 Pro GPU, including the on-chip inclusion of features such as ray tracing (a technique used in 3D rendering to model mathematically and with realism viewing complex scenes).
As far as we understand, the first prototypes of the iPhone 14 Pro integrated a much more powerful GPU than the current one but this entailed the downside of consumption much higher than those assumed, with an impact on battery life and thermal management functions.
According to those who would have had the opportunity to see prototypes of the first iPhone 14 Pro at work, Apple would have identified the problems related to the GPU only later, and would therefore have been forced to hastily retrace its steps, practically exploiting the same GPU already seen on the A15 of the iPhone 13.
The issue is claimed to be something that has never happened before in Apple’s chip design, and would explain why the GPU in the new phones doesn’t offer dramatic improvements over the GPU in the previous SoC.
What happened would have led the management to make changes in the processor development team and remove some managers from the project, including the exit of key figures who previously contributed in various capacities to the SoCs.
In the report of The Information it is still stated that the Apple team that deals with the development of SoCs would have lost dozens of figures in recent years.